The CPS1/Hep Par-1 (E9I9U) Rabbit mAb Antibody from Cell Signaling Technology is a Rabbit Monoclonal antibody to CPS1. This antibody recognizes Homo Sapiens, and Human antigen. The CPS1/Hep Par-1 (E9I9U) Rabbit mAb Antibody has been shown to work in the following applications: Immunohistochemistry, Immunohistochemistry - fixed, and Western Blot.